diff --git a/site/routes/api_bp.py b/site/routes/api_bp.py
index 68c3415..baba76f 100644
--- a/site/routes/api_bp.py
+++ b/site/routes/api_bp.py
@@ -1,4 +1,6 @@
 """API blueprint — groups, documents, supplements, sync, cleanup, spec-current, chat."""
+import csv
+import io
 import json
 from datetime import date
 from flask import Blueprint, request, jsonify
@@ -6,8 +8,11 @@ from db import documents, supplements, spec_current
 from db import dossiers as db_dossiers
 from db import exceptions as db_exceptions
 from db import timeline as db_timeline
+from db import extractions as db_extractions
 from db.connection import execute, query, transaction
 from services.grouping import group_documents, apply_groups
+from services.reconciliation import reconcile_dossier
+from services.timeline_builder import build_dossier_timeline
 from config import LLM_URL, LLM_KEY, LLM_MODEL
 import httpx
 
@@ -46,6 +51,28 @@ def api_dossier_timeline(dossier_id):
     )
 
 
+@api_bp.route("/api/dossiers")
+def api_dossiers():
+    """Вернуть dossier cards batch вместе с alias и связанными документами."""
+    batch_id = request.args.get("batch_id")
+    if not batch_id:
+        return jsonify(ok=False, error="batch_id required"), 400
+    dossiers = db_dossiers.list_dossiers_by_batch(batch_id)
+    extractions_by_document = {
+        extraction["document_id"]: extraction
+        for extraction in db_extractions.list_by_batch(batch_id)
+    }
+    for dossier in dossiers:
+        for document in dossier.get("documents", []):
+            extraction = extractions_by_document.get(document.get("document_id"))
+            validation = (extraction or {}).get("math_validation") or {}
+            document["math_status"] = validation.get("status", "UNKNOWN")
+    return jsonify(
+        ok=True,
+        dossiers=dossiers,
+    )
+
+
 @api_bp.route("/api/exceptions")
 def api_exceptions():
     """Вернуть исключения только по явно заданной области batch или dossier."""
@@ -64,6 +91,93 @@ def api_exceptions():
     )
 
 
+@api_bp.route("/api/reconcile", methods=["POST"])
+def api_reconcile():
+    """Сверить JSON или CSV строки внешнего биллинга с эталоном dossier."""
+    content_type = request.mimetype or ""
+    if content_type == "application/json":
+        body = request.get_json(silent=True) or {}
+        dossier_id = body.get("dossier_id")
+        rows = body.get("external_rows")
+        target = body.get("target_date_or_period")
+        catalog_entries = body.get("catalog_entries", [])
+    elif content_type == "multipart/form-data":
+        dossier_id = request.form.get("dossier_id")
+        upload = request.files.get("file")
+        if upload is None:
+            return jsonify(ok=False, error="CSV file required"), 400
+        try:
+            rows = list(csv.DictReader(io.StringIO(upload.stream.read().decode("utf-8-sig"))))
+        except (UnicodeDecodeError, csv.Error):
+            return jsonify(ok=False, error="CSV must be UTF-8 with a header row"), 400
+        target = request.form.get("target_date_or_period")
+        if target:
+            try:
+                target = json.loads(target)
+            except json.JSONDecodeError:
+                return jsonify(ok=False, error="target_date_or_period must be JSON"), 400
+        catalog_entries = request.form.get("catalog_entries", "[]")
+        try:
+            catalog_entries = json.loads(catalog_entries)
+        except json.JSONDecodeError:
+            return jsonify(ok=False, error="catalog_entries must be JSON"), 400
+    else:
+        return jsonify(ok=False, error="use application/json or multipart/form-data"), 415
+
+    if not isinstance(dossier_id, str) or not dossier_id.strip():
+        return jsonify(ok=False, error="dossier_id required"), 400
+    if not isinstance(rows, list) or any(not isinstance(row, dict) for row in rows):
+        return jsonify(ok=False, error="external_rows must be an array of objects"), 400
+    if not isinstance(catalog_entries, list) or any(not isinstance(row, dict) for row in catalog_entries):
+        return jsonify(ok=False, error="catalog_entries must be an array of objects"), 400
+    try:
+        result = reconcile_dossier(dossier_id, rows, target, catalog_entries)
+    except ValueError as error:
+        return jsonify(ok=False, error=str(error)), 400
+    if not result.get("ok"):
+        return jsonify(result), 404
+    return jsonify(result)
+
+
+@api_bp.route("/api/exceptions/<exception_id>/resolve", methods=["POST"])
+def api_resolve_exception(exception_id):
+    """Сохранить выбор оператора и без LLM пересобрать dossier timeline."""
+    issue = db_exceptions.get_exception(exception_id)
+    if not issue:
+        return jsonify(ok=False, error="exception not found"), 404
+    if issue.get("status") != "OPEN":
+        return jsonify(ok=False, error="exception is not open"), 409
+    body = request.get_json(silent=True) or {}
+    resolution = body.get("resolution")
+    if not isinstance(resolution, dict) or not resolution:
+        return jsonify(ok=False, error="resolution object required"), 400
+
+    options = issue.get("options") or []
+    if "option_index" in resolution:
+        option_index = resolution["option_index"]
+        if type(option_index) is not int or not 0 <= option_index < len(options):
+            return jsonify(ok=False, error="option_index is invalid"), 400
+        resolution = {
+            "option_index": option_index,
+            "selected_option": options[option_index],
+        }
+    elif issue.get("stage") == "lineage_matching" and options:
+        return jsonify(ok=False, error="choose an option_index"), 400
+
+    if issue.get("dossier_id") and not db_dossiers.get_dossier(issue["dossier_id"]):
+        return jsonify(ok=False, error="dossier not found"), 404
+    resolved = db_exceptions.resolve_exception(exception_id, resolution)
+    if not resolved:
+        return jsonify(ok=False, error="exception is not open"), 409
+
+    rebuild = None
+    if issue.get("dossier_id"):
+        rebuild = build_dossier_timeline(issue["dossier_id"])
+        if not rebuild.get("ok"):
+            return jsonify(ok=False, error="timeline rebuild failed", rebuild=rebuild), 500
+    return jsonify(ok=True, exception=resolved, rebuild=rebuild)
+
+
 # ── Supplements ──────────────────────────────────────────────────
 
 @api_bp.route("/api/supplements")
diff --git a/site/routes/pipeline_bp.py b/site/routes/pipeline_bp.py
index 409c1e3..ce367af 100644
--- a/site/routes/pipeline_bp.py
+++ b/site/routes/pipeline_bp.py
@@ -2,7 +2,9 @@
 import json, re, os, threading
 from flask import Blueprint, request, jsonify, Response, stream_with_context
 from services.process import run_pipeline
-from services.classify import classify_batch
+from services import extractor as stateless_extractor
+from services.grouping import build_dossiers_for_batch
+from services.timeline_builder import build_dossier_timeline
 from llm_prompt import build_prompt
 from db import documents
 
@@ -10,11 +12,58 @@ pipeline_bp = Blueprint("pipeline", __name__)
 
 # In-memory lock для classify (замена файлового lock)
 _classify_locks: dict[str, threading.Thread] = {}
+_extraction_jobs: dict[str, dict] = {}
 
 
 @pipeline_bp.route("/process-v2", methods=["GET"])
 def process_v2():
     """SSE-стриминг сравнения договоров."""
+    dossier_id = request.args.get("dossier_id")
+    if dossier_id:
+        if not re.fullmatch(
+            r'[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}',
+            dossier_id, re.I,
+        ):
+            return jsonify(ok=False, error="invalid dossier_id"), 400
+
+        def generate_timeline():
+            import time as _time
+            started = _time.time()
+            yield ": ok\n\n"
+            yield "data: " + json.dumps({
+                "type": "extract_start", "supplement_id": dossier_id,
+                "filename": "Построение таймлайна",
+            }, ensure_ascii=False) + "\n\n"
+            try:
+                result = build_dossier_timeline(dossier_id)
+                if not result.get("ok"):
+                    yield "data: " + json.dumps({
+                        "type": "error", "message": result.get("error", "timeline build failed"),
+                    }, ensure_ascii=False) + "\n\n"
+                    return
+                yield "data: " + json.dumps({
+                    "type": "timeline", "dossier_id": dossier_id,
+                    "timeline": result.get("timeline", []),
+                    "exceptions": result.get("exceptions", []),
+                    "counts": result.get("counts", {}),
+                }, ensure_ascii=False, default=str) + "\n\n"
+                yield "data: " + json.dumps({
+                    "type": "done", "dossier_id": dossier_id,
+                    "total_time_s": round(_time.time() - started, 2),
+                }, ensure_ascii=False) + "\n\n"
+            except GeneratorExit:
+                return
+            except Exception as error:
+                yield "data: " + json.dumps({
+                    "type": "error", "message": str(error),
+                }, ensure_ascii=False) + "\n\n"
+
+        return Response(
+            stream_with_context(generate_timeline()),
+            content_type="text/event-stream; charset=utf-8",
+            headers={"Cache-Control": "no-cache", "X-Accel-Buffering": "no"},
+        )
+
     cid = request.args.get("contract_id")
     if not cid or not re.fullmatch(
         r'[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}', cid, re.I
@@ -53,10 +102,12 @@ def process_v2():
 
 @pipeline_bp.route("/api/classify-batch", methods=["POST"])
 def classify_batch_route():
-    """Запустить классификацию. ≤10 файлов — sync, >10 — async (Thread)."""
-    body = request.get_json()
+    """Выполнить stateless extraction и построить contract dossiers."""
+    body = request.get_json(silent=True) or {}
+    if not isinstance(body, dict):
+        return jsonify(ok=False, error="JSON object required"), 400
     batch_id = body.get("batch_id")
-    if not batch_id:
+    if not isinstance(batch_id, str) or not batch_id.strip():
         return jsonify(ok=False, error="batch_id required"), 400
 
     # Guard: уже запущена?
@@ -67,20 +118,27 @@ def classify_batch_route():
         else:
             del _classify_locks[batch_id]
 
-    pending = documents.list_pending(batch_id)
+    pending = documents.list_for_extraction(batch_id)
     total = len(pending)
     if total == 0:
-        return jsonify(ok=False, error="no pending documents"), 400
+        return jsonify(ok=False, error="no parsed documents"), 400
 
-    # Sync для малых батчей
+    # Keep small batches synchronous for the existing browser workflow.
     if total <= 10:
-        result = classify_batch(batch_id)
+        result = _run_v3_extraction(batch_id, total)
         return jsonify(result)
 
-    # Async для больших
+    _extraction_jobs[batch_id] = {
+        "state": "running", "total": total, "done": 0,
+        "failed": 0, "classes": {},
+    }
+
     def _run():
         try:
-            classify_batch(batch_id)
+            _run_v3_extraction(batch_id, total, _extraction_progress)
+            _extraction_jobs[batch_id]["state"] = "done"
+        except Exception as error:
+            _extraction_jobs[batch_id].update(state="failed", error=str(error))
         finally:
             _classify_locks.pop(batch_id, None)
 
@@ -88,4 +146,70 @@ def classify_batch_route():
     _classify_locks[batch_id] = t
     t.start()
 
-    return jsonify(ok=True, total=total), 202
+    return jsonify(ok=True, total=total, v3=True), 202
+
+
+def _extraction_progress(batch_id, completed, result):
+    """Обновить лёгкий in-memory прогресс для крупного batch."""
+    job = _extraction_jobs[batch_id]
+    job["done"] = completed
+    if not result.get("ok"):
+        job["failed"] += 1
+    else:
+        extraction = result.get("extraction") or {}
+        doc_class = extraction.get("doc_class", "unknown")
+        job["classes"][doc_class] = job["classes"].get(doc_class, 0) + 1
+
+
+def _run_v3_extraction(batch_id, total, progress_callback=None):
+    """Собрать extraction и dossier summaries в один ответ API."""
+    extraction = stateless_extractor.extract_batch(
+        batch_id,
+        progress_callback=(
+            (lambda completed, result: progress_callback(batch_id, completed, result))
+            if progress_callback else None
+        ),
+    )
+    dossier_result = build_dossiers_for_batch(batch_id)
+    classes = extraction.get("classes", {})
+    math_checks_passed = sum(
+        1 for result in extraction.get("results", [])
+        if (result.get("extraction") or {}).get("math_validation", {}).get("status") == "VERIFIED"
+    )
+    return {
+        "ok": bool(extraction.get("results")) and dossier_result.get("ok", False),
+        "v3": True,
+        "done": total,
+        "total": total,
+        "failed": extraction.get("failed", 0),
+        "classes": classes,
+        "ignored_accounting": classes.get("ignored_accounting", 0),
+        "math_checks_passed": math_checks_passed,
+        "dossier_count": len(dossier_result.get("dossiers", [])),
+        "ambiguous": dossier_result.get("ambiguous", 0),
+        "unlinked": dossier_result.get("unlinked", []),
+    }
+
+
+@pipeline_bp.route("/api/classify-progress")
+def classify_progress_route():
+    """Вернуть состояние асинхронного stateless extraction batch."""
+    batch_id = request.args.get("batch")
+    if not batch_id:
+        return jsonify(ok=False, error="batch required"), 400
+    job = _extraction_jobs.get(batch_id)
+    if not job:
+        return jsonify(ok=False, error="batch extraction not found"), 404
+    response = {
+        "ok": job["state"] != "failed",
+        "v3": True,
+        "finished": job["state"] in {"done", "failed"},
+        "state": job["state"],
+        "done": job["done"],
+        "total": job["total"],
+        "failed": job["failed"],
+        "classes": job["classes"],
+    }
+    if job.get("error"):
+        response["error"] = job["error"]
+    return jsonify(response)
diff --git a/site/services/extractor.py b/site/services/extractor.py
index 7aa00db..f898720 100644
--- a/site/services/extractor.py
+++ b/site/services/extractor.py
@@ -306,10 +306,22 @@ def extract_document(document, llm_client=None, batch_id=None):
         return {"ok": False, "document_id": document_id, "error": str(error)}
 
 
-def extract_batch(batch_id, llm_client=None):
-    """Обработать все документы batch и вернуть сводку без batch-wide failure."""
+def extract_batch(batch_id, llm_client=None, progress_callback=None):
+    """Обработать документы batch и вернуть сводку без batch-wide failure.
+
+    Optional progress callback получает (completed_count, document_result) после
+    каждого документа; ошибки callback не должны останавливать обработку batch.
+    """
     documents = db_docs.list_for_extraction(batch_id)
-    results = [extract_document(document, llm_client=llm_client, batch_id=batch_id) for document in documents]
+    results = []
+    for completed, document in enumerate(documents, start=1):
+        result = extract_document(document, llm_client=llm_client, batch_id=batch_id)
+        results.append(result)
+        if progress_callback is not None:
+            try:
+                progress_callback(completed, result)
+            except Exception:
+                log.exception("Extraction progress callback failed for batch %s", batch_id)
     done = sum(1 for result in results if result["ok"])
     failed = len(results) - done
     classes = {}
diff --git a/site/services/timeline_builder.py b/site/services/timeline_builder.py
index 40f02b7..b425502 100644
--- a/site/services/timeline_builder.py
+++ b/site/services/timeline_builder.py
@@ -185,7 +185,39 @@ def _append_interval(dossier_id, service_item, row, section, document,
     })
 
 
-def _process_document(dossier, document, passport, items, counts):
+def _resolved_option_for(document_id, row, resolved_exceptions):
+    """Найти сохранённый выбор для точной строки и документа lineage исключения."""
+    quote = _row_quote(row)
+    for issue in resolved_exceptions:
+        if (
+            issue.get("stage") == "lineage_matching"
+            and issue.get("document_id") == document_id
+            and issue.get("source_quote") == quote
+        ):
+            resolution = issue.get("resolution")
+            if isinstance(resolution, dict):
+                option = resolution.get("selected_option")
+                return option if isinstance(option, dict) else None
+    return None
+
+
+def _reusable_service_item(identity, service_items):
+    """Найти прежнюю устойчивую identity, не включая будущие строки в matching."""
+    family = identity.get("service_family")
+    anchor = identity.get("instance_anchor") or ""
+    candidates = [item for item in service_items if item.get("service_family") == family]
+    if anchor:
+        candidates = [item for item in candidates if item.get("instance_anchor", "") == anchor]
+    else:
+        candidates = [
+            item for item in candidates
+            if item.get("canonical_name") == identity.get("canonical_name")
+        ]
+    return candidates[0] if len(candidates) == 1 else None
+
+
+def _process_document(dossier, document, passport, items, counts,
+                      resolved_exceptions=None, reusable_items=None):
     """Reconcile every section of one passport against current dossier services."""
     doc_id = document["document_id"]
     mode = passport.get("intent_mode")
@@ -216,23 +248,47 @@ def _process_document(dossier, document, passport, items, counts):
                 effective_dates.append(start)
             identity = analyze_service_row(row.get("raw_name"), charge_type)
             match = match_service_item(identity, items)
+            if match["status"] == "AMBIGUOUS":
+                selected_option = _resolved_option_for(
+                    doc_id, row, resolved_exceptions or [],
+                )
+                if selected_option:
+                    selected_id = selected_option.get("service_item_id")
+                    candidates = [item for item in match["candidates"] if item.get("id") == selected_id]
+                    if not candidates:
+                        candidates = [
+                            item for item in match["candidates"]
+                            if item.get("service_family") == selected_option.get("service_family")
+                            and item.get("instance_anchor", "") == selected_option.get("instance_anchor", "")
+                        ]
+                    if len(candidates) == 1:
+                        match = {
+                            "status": "MATCHED", "service_item": candidates[0],
+                            "candidates": candidates,
+                        }
             if match["status"] == "AMBIGUOUS":
                 _add_lineage_exception(
                     dossier["id"], dossier.get("batch_id"), doc_id,
                     "AMBIGUOUS_SERVICE_ITEM", _row_quote(row),
-                    options=[{"service_item_id": item["id"], "canonical_name": item.get("canonical_name")}
-                             for item in match["candidates"]],
+                    options=[{
+                        "service_item_id": item["id"],
+                        "service_family": item.get("service_family"),
+                        "instance_anchor": item.get("instance_anchor", ""),
+                        "canonical_name": item.get("canonical_name"),
+                    } for item in match["candidates"]],
                 )
                 counts["ambiguous"] += 1
                 continue
             service_item = match["service_item"]
             if service_item is None:
-                service_item = db_timeline.insert_service_item(
-                    dossier_id=dossier["id"],
-                    service_family=identity["service_family"],
-                    canonical_name=identity["canonical_name"] or "(empty)",
-                    instance_anchor=identity["instance_anchor"],
-                )
+                service_item = _reusable_service_item(identity, reusable_items or [])
+                if service_item is None:
+                    service_item = db_timeline.insert_service_item(
+                        dossier_id=dossier["id"],
+                        service_family=identity["service_family"],
+                        canonical_name=identity["canonical_name"] or "(empty)",
+                        instance_anchor=identity["instance_anchor"],
+                    )
                 items.append(service_item)
 
             open_intervals = [
@@ -351,7 +407,11 @@ def build_dossier_timeline(dossier_id, contract_id=None):
     if dossier is None:
         return {"ok": False, "error": "dossier not found", "dossier_id": dossier_id}
     documents = _ordered_documents(dossier_id)
+    resolved_exceptions = db_exceptions.list_exceptions(
+        dossier_id=dossier_id, status="RESOLVED",
+    )
     items = []
+    reusable_items = db_timeline.list_service_items(dossier_id)
     counts = {"created": 0, "updated": 0, "unchanged": 0, "closed": 0, "ambiguous": 0}
 
     with transaction():
@@ -360,10 +420,13 @@ def build_dossier_timeline(dossier_id, contract_id=None):
                WHERE dossier_id = %s AND stage = 'lineage_matching' AND status = 'OPEN'""",
             (dossier_id,),
         )
-        execute("DELETE FROM service_items WHERE dossier_id = %s", (dossier_id,))
+        execute("DELETE FROM timeline_intervals WHERE dossier_id = %s", (dossier_id,))
         for document in documents:
             passport = _passport_for(document)
-            _process_document(dossier, document, passport, items, counts)
+            _process_document(
+                dossier, document, passport, items, counts,
+                resolved_exceptions, reusable_items,
+            )
 
     if contract_id:
         sync_legacy_spec_current(dossier_id, contract_id)